First Terrarium is a small, independent guide to building and keeping a first terrarium. It is written for ordinary readers who want clear, practical answers without wading through forums or sales pages.

What you will find

Every article here is short by design and aims to answer one question well. We cover We cover what determines whether a terrarium survives: the fundamental split between closed humid environments and open dry ones and which plants belong in each, how to choose a vessel and build the drainage, barrier, and substrate layers that keep roots out of standing water, how to plant and shape a small landscape, and how to read condensation, mould, browning, and leggy growth as the specific signals they are. We add new articles steadily rather than all at once, so the library grows over time.

Who writes this

The site is written and edited by a small team with hands-on experience in building and keeping a first terrarium. We are not a brand, a shop, or an affiliate network pretending to be a magazine. We do not sell products, and nothing here is sponsored.

Our approach

We test what we can, read widely, and write only about things we actually understand. Where experts disagree, we say so. Where we are uncertain, we tell you that too. The goal is the first useful answer — enough to act on, with a pointer to deeper reading when you want it.

What this site is not

This is not professional advice tailored to your exact situation. This site provides general information about terrariums and houseplants as a hobby and is not horticultural, veterinary, or medical advice. Many common terrarium and houseplant species are toxic if chewed or swallowed by people or animals, and some cause skin or eye irritation on contact - identify every plant you buy and check its toxicity before placing a terrarium anywhere a child or pet can reach it. Potting substrates and damp organic material can carry bacteria and fungi; wear gloves, avoid inhaling dry compost dust, wash hands afterwards, and seek medical advice if you have a compromised immune system or a respiratory condition. Glass vessels break and cut. Any keeping of live animals in an enclosure is outside the scope of this site and is subject to welfare law and specialist care requirements. Check local rules before collecting moss, plants, or wood from the wild - it is restricted or prohibited in many places - and never introduce collected material without considering pests and disease. For anything with real stakes, consult a qualified professional.

Feedback

Spotted an error or want to suggest a topic? Use the contact page. We read everything and reply when we can.